For developers

2013-03-05T16:22:12Z

Dodet:

All svn account holders need to familiarize themselves with the following rules.

==Sharing I/O channels in SELFE==

You need to exercise caution when dealing with parallel I/O especially for writing. For writing outputs, you’d generally let only 1 process do the job, e.g.

if(myrank==0) write(10,*)…..

If you do need to have all processes write e.g. debug messages, you’d then use channel 12 (see below).

Here are all I/O channel numbers used in different sub-models of SELFE (bold numbers mean they have been used by other sub-models and you’d avoid using them):

* Hydro/: Channels between 8 and 200 are used by various codes for I/O. In particular:
** 12: this channel is initialized by different processes to point to files outputs/nonfatal_xxxx, where “xxxx” are the process IDs. Therefore it’s very useful for debugging purpose; you can use it ''anywhere''
** '''101 to 100+noutputs''' (inclusive of both): reserved for global outputs (including from tracers from sediment, EcoSim, ICM, as well as WWM);
** '''201-250''': non-standard outputs (e.g. at sidecenters, prism centers);
** '''251 to 259''': reserved for station outputs
** '''301 to 300+ntracers''': reading channels for non-point source inputs for ICM
** 10, 31, 32: used for one-off I/O – can be used by other sub-models as long as you close them immediately after use in your part of the code to dump messages to these files
** 16: this channel points to mirror.out (on rank 0), the main message output for info about the run. You should use it with if(myrank==0)
* WWM
** '''1100 to 1200''': handles for inputs/outputs etc
* EcoSim
** '''600''': outputting some messages
* Sediment
* Sed2D
** '''26'''

==Rules for contributing your code to be included in the SELFE package==

Here are some rules for preparing your own code:
* No spaces between “#” (pre-processor) and if/else/end;
* Don’t use “!” inside write/print or any other non-comment portion;

ccrmwiki - User contributions [en]

For developers